Installation Procedure

Install the ignition and key alarm switch assembly (1) onto the lock module assembly.
Screw the tapping screws (2) into the ignition and key alarm switch assembly (1).
Tighten:

Tighten the tapping screws to 1.5 N.m (13 lb in)

Fig 1: Key Alarm Switch Assembly And Tapping Screws
Courtesy of GENERAL MOTORS CORP.
Install the key alarm connector (1) into the lock module assembly (2).
1. 3.1. Push the key alarm connector (1) into the lock module assembly (2).
2. 3.2. Rotate the key alarm connector (1) 90 degrees so that the key alarm connector (1) locks into place.
  
  Fig 2: Key Alarm Connector To The Lock Module Assembly
  Courtesy of GENERAL MOTORS CORP.
If the vehicle is equipped with a theft deterrent module (2), install the theft deterrent module (2) into the lock module assembly.

Fig 3: Theft Deterrent Module
Courtesy of GENERAL MOTORS CORP.
Install the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .
Slide the connectors (2) of the turn signal and multifunction switch assembly into the bulkhead connector (1).

Fig 4: Connectors And Bulkhead Connector
Courtesy of GENERAL MOTORS CORP.
Attach the wire harness straps (1) to the wire harness assembly (2) and the steering column.

Fig 5: Wire Harness Assembly And Wire Harness Strap

Courtesy of GENERAL MOTORS CORP.

Install the upper and lower steering column trim covers. Refer to Steering Column Trim Covers Replacement - On Vehicle .
Install the steering wheel. Refer to Steering Wheel Replacement .
Install the inflatable restraint steering wheel module.
Enable the SIR system. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM .
Connect the negative battery cable to the battery.